23009959 has 24 divisors (see below), whose sum is σ = 29598048. Its totient is φ = 17740800.

The previous prime is 23009953. The next prime is 23009983. The reversal of 23009959 is 95990032.

It is not a de Polignac number, because 23009959 - 2³ = 23009951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23009951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18559 + ... + 19759.

It is an arithmetic number, because the mean of its divisors is an integer number (1233252).

Almost surely, 2^23009959 is an apocalyptic number.

23009959 is a deficient number, since it is larger than the sum of its proper divisors (6588089).

23009959 is a wasteful number, since it uses less digits than its factorization.

23009959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 23009959 is about 4796.8697084661. The cubic root of 23009959 is about 284.4277385423.

The spelling of 23009959 in words is "twenty-three million, nine thousand, nine hundred fifty-nine".